MRA super-wavelets

MRA super-wavelets
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DOI:
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发表时间:
2004-10
期刊:
arXiv: Functional Analysis
影响因子:
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通讯作者:
S. Bildea;D. Dutkay;Gabriel Picioroaga
S. Bildea;D. Dutkay;Gabriel Picioroaga
中科院分区:
其他
文献类型:
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作者:
S. Bildea;D. Dutkay;Gabriel Picioroaga

文献摘要

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我们构造了L 2(R)⊕···⊕L 2(R)的多分辨理论。为了在这些较大的空间上很好地选择伸缩和平移算子,可以构造单生成小波基,从而获得多分辨超小波。给出了超尺度函数的一个刻画,分析了级联算法的收敛性,并给出了超小波的例子。我们的分析还提供了对L2(R)上经典情况下尺度函数正交性的Cohen和Lawton条件的更多洞察。
We construct a multiresolution theory for L 2 (R) ⊕· ·· ⊕L 2 (R). For a good choice of the dilation and translation operators on these larger spaces, it is possible to build singly generated wavelet bases, thus obtaining multires- olution super-wavelets. We give a characterization of super-scaling function, we analyze the convergence of the cascade algorithms and give examples of super-wavelets. Our analysis provides also more insight into the Cohen and Lawton condition for the orthogonality of the scaling function in the classical case on L2(R).